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P0132 Saturn

P0132 Saturn - HO2S Circuit High Voltage Bank 1 Sensor 1

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P0132 Saturn Comments |  Add Comment
Possible causes
- Faulty Front Heated Oxygen Sensor Bank 1
- Front Heated Oxygen Sensor Bank 1 harness is open or shorted
- Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
Help with Possible causes What does this mean?
Tech notes
Replacing the Front Heated Oxygen Sensor (HO2S) Bank 1 usually takes care of the problem
Help with Tech Notes What does this mean?
When is the code detected?
An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P0132 Saturn Description

The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the Front Heated Oxygen Sensor (HO2S) high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.

The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCM evaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.

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